My wife is from the Midwest, and on visits there I’ve regularly heard people refer to suburbans/explorers/etc. as “trucks”. Essentially the same platform, but with an enclosed rear with seats.
According to chrysler, the PT Cruiser was a "light truck".
I do think it's common for people to call large SUVs like the Ford Excursion "trucks".
They were only classed as trucks because they could not pass emmissions otherwise. A great example of the truck laws perverse incentives to automakers.
If you see enough pickup trucks with bed caps you'll start to just view SUVs as those
Some SUVs qualify as trucks under the definitions written into the law.